How Much Is 1.91 Cups of Butter in Ounces?
1.91 cups of butter weighs 15.29 oz. This is based on butter having a density of 227g per cup. Because cups measure volume and ounces measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 1.91 cups.
Formula and Step-by-Step
- Start with 1.91 cups of butter
- 1 cup of butter = 227g
- 1.91 × 227 = 433.57g
- Convert grams to ounces: 433.57 ÷ 28.3495 = 15.29 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Cold butter straight from the fridge is hardest to measure by volume. Cut it into tablespoon-sized pieces using the wrapper markings for accuracy.
Butter at Different Amounts
How butter scales across common cups measurements. Your amount (1.91 cups) is highlighted.
For reference, 1.91 cups of butter (433.57g) is close in weight to a loaf of bread (450g).
Other Amounts of Butter
| Cups | US Ounces | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.25 cups | 2.00 oz | 2.12 oz | 2.40 oz |
| 0.33 cups | 2.64 oz | 2.79 oz | 3.17 oz |
| 0.5 cups | 4.00 oz | 4.23 oz | 4.81 oz |
| 0.75 cups | 6.01 oz | 6.35 oz | 7.21 oz |
| 1 cup | 8.01 oz | 8.46 oz | 9.62 oz |
| 1.5 cups | 12.01 oz | 12.69 oz | 14.42 oz |
| 1.91 cups | 15.29 oz | 16.16 oz | 18.37 oz |
| 2 cups | 16.01 oz | 16.92 oz | 19.23 oz |
| 3 cups | 24.02 oz | 25.38 oz | 28.85 oz |
| 4 cups | 32.03 oz | 33.84 oz | 38.47 oz |
| 5 cups | 40.04 oz | 42.31 oz | 48.08 oz |
Understanding the Units
What is a Cup?
In US cooking, a cup measures volume, not weight. One standard US cup holds 236.588 ml of liquid. Because different ingredients have different densities, a cup of one ingredient can weigh very differently from a cup of another.
What is an Ounce?
Ounces are commonly used in US recipes for cheese, meat, chocolate, and other ingredients sold by weight. Many kitchen scales offer both gram and ounce readings.